Given that , find in terms of and show that
.
EDIT: Sorry, It is a typo, it should be .
Hi,
I'm not really sure because I can't get to your equation...
And sorry for the "d", it takes too long time to straighten them...
You're looking for
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Now, (we have to do it because the variable is t in the brackets, not x).
Replacing :
Using the product rule :
Edit : oh I see, you made a typo, Air
Re-edit : too fast for me Mr F